NFS client fixes for Linux 6.2

Bugfix:
 - Revert "NFSv4.2: Change the default KConfig value for READ_PLUS"
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Merge tag 'nfs-for-6.2-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fix from Trond Myklebust:
 "Unfortunately, we found another bug in the NFSv4.2 READ_PLUS code.

  Since it has not been possible to fix the bug in time for the 6.2
  release, let's just revert the Kconfig change that enables it:

   - Revert 'NFSv4.2: Change the default KConfig value for READ_PLUS'"

* tag 'nfs-for-6.2-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  Revert "NFSv4.2: Change the default KConfig value for READ_PLUS"

fs/nfs/Kconfig

@@ -209,8 +209,8 @@ config NFS_DISABLE_UDP_SUPPORT
 config NFS_V4_2_READ_PLUS
 	bool "NFS: Enable support for the NFSv4.2 READ_PLUS operation"
 	depends on NFS_V4_2
-	default y
+	default n
 	help
-	 Choose Y here to enable the use of READ_PLUS over NFS v4.2. READ_PLUS
-	 attempts to improve read performance by compressing out sparse holes
-	 in the file contents.
+	 This is intended for developers only. The READ_PLUS operation has
+	 been shown to have issues under specific conditions and should not
+	 be used in production.